greenplumn struct 代码
文件路径：/src/interfaces/ecpg/test/preproc/struct.h
struct mytype
{
int id;
char t[64];
double d1; /* dec_t */
double d2;
char c[30];
};
typedef struct mytype MYTYPE;
struct mynulltype
{
int id;
int t;
int d1;
int d2;
int c;
};
typedef struct mynulltype MYNULLTYPE;